Patents by Inventor Enrico Betta

Enrico Betta has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for preparing viscosity index improvers for lubricating oils by cracking synthetic rubbers in the liquid phase
    Patent number: 4327237
    Abstract: A process for preparing viscosity index improvers for lubricating oils consisting of thermally cracking a solution of an olefin copolymer in mineral oil at a temperature of between 250.degree. C. and 350.degree. C. in an inert atmosphere said solution containing free radical scavengers.
    Type: Grant
    Filed: June 4, 1980
    Date of Patent: April 27, 1982
    Assignee: Agip Petroli, S.p.A.
    Inventors: Luigi Imparato, Giampaolo Gerbaz, Enrico Betta